• KIEAE Journal
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• 제13권1호
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• pp.133-140
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• 2013

The purpose of this study was to test the effectiveness of the light-shelf system combined with IT to save lighting energy in resident space. According to the multiple variables that affected intensity of illumination, various experiments were designed and conducted. The main findings of this study were following: (1)the optimal level of light-shelf system was formulated which met the appropriate range of intensity of illumination in living-room; (2)although the mixed light-shelf system indicated a high performance, it could often provide discomforts to residents according to the degree of exposure; (3)artificial lights using light-shelf system combined with IT showed a higher effectiveness than those using fixed light-shelf system displayed. This study provided initial information of light-shelf system formative processes that could contribute to the lighting energy diminution. Future studies should focus more on multiple approaches regarding different types of resident space planning.

• 한국주거학회논문집
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• 제27권4호
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• pp.23-32
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• 2016

The necessity of remodeling performance grading system is getting increased for the systematic management of existing housing stock, providing the resident's right to know and promoting the remodeling projects. A quantitative and objective evaluation method that has reflected the characteristics of remodeling must be developed because there is an aspect of having difficulty of assessment by an ordinary person as remodeling performance contains specialized details while the difficulty of applying the criteria of new buildings in terms of assessment items, criteria and methods. Accordingly, this study sets the goal as setting up the development objectives of performance grading system that has considered the remodeling characteristics. This study has analyzed the various assessment systems related to the domestic apartments as well as setting up the organization system of the remodeling performance grading system, perspectives of performance assessment and scope of assessment through literature, etc. It has also established the principles for setting up the assessment items of remodeling performance grade to present the directions for setting up assessment items and criteria.

• 한국병원경영학회지
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• 제18권2호
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• pp.15-32
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• 2013

Few public health researchers have paid research attention to the location of medical institutions in Korea. Previous studies were published in geography journals, and relied on limited data in terms of geographic regions and the type of medical institutions. This study utilized nationwide data covering 8 types of medical institutions. We obtained data from Health Insurance Review and Assessment Service and National Population and Housing Census. The correlation coefficients of resident, daytime, university-graduate population, and the population of different age groups (fewer than 15, 15~64, 65 or more) were compared to understand their relative association with the location of medical institutions. Medical clinic, dental clinic, oriental medical clinic, and pharmacy, all of which are almost completely operated by private sector, showed strong positive correlation with population. Hospital-level medical institutions, which are operated by both public and private sector, had moderate positive correlation. Daytime population and university-graduate population, rather than resident population, were more correlated with the location of medical clinics. The correlation coefficients of the population of 15~64 age group and the location of medical institutions were greater than that of other age groups. The results showed that daytime and university-graduate population are more important than resident population to explain the location of medicalrelated facilities. The results also suggests that the population of age groups (especially, 15~64) might be one of important influence factors in the location of medical institutions.

• KIEAE Journal
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• 제7권5호
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• pp.93-98
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• 2007

Effort has been performed for latest 20 years to improve resident's comfort and indoor environment in building. And interest and effort to improve indoor air environment among various indoor environment elements have continuously increased since 1990s, because it is examined scientifically that various contaminants generated indoor affect human body. Specially, indoor air contaminants generated from apartments are those exhausted from resident's indoor environment, closing materials and household. Indoor air environment in buildings is different according to pollution degree, existence availability of pollution source, ventilation amount, and meteorology. It is known that other contaminants more than about 900 kinds generate according to a kind of work or action in a room. Specially, nowadays buildings are well insulated and confidentiality-centered for environment protection and economical side. So indoor air contaminants are generated from indoor air pollution sauces of unprepared ventilation, human body carbon dioxide emissions, and various building materials. when these are accumulated in long term human body, it is harmful to resident's health, but awareness for this is very insufficient. Because bedroom is space that people inhabit for a long time by unconscious state and indoor environment occupies important part for resident's health and quality of life at sleep, the actual condition of air quality is investigated, improvement countermeasure is considered, and ventilation amount is analyzed. In this study, putting case that the most longest stayed time is sleeping time when people inhabit in the apartment, the air quality according to volume of bedroom space at sleep was measured and analyzed, and the data acquired will be the basis for improvement on this.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2006년 창립20주년기념 정기학술대회 및 국제워크샵
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• pp.257-260
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• 2006

West coast of Korea belongs to the five largest tidal-flat zones in the world. Aiming at the efficient management and preservation of the eco-system and the enhancement of the bio-productivity of the tidal-flat zones, development of a environment-friendly vehicle for tidal-flat area is being attempted. This paper deals with the description of the characteristics of the tidal-flat zones of west coast of Korea, the technology assessment of the related products in the ATV(All-Terrain Vehicle) market, the demand assessment for the resident people.

• Nuclear Engineering and Technology
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• 제56권10호
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• pp.4384-4389
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• 2024

NORM is used as a raw material in various industries worldwide. According to the IAEA, radiological effects may occur in the environment due to raw materials and by-products generated from NORM industries. The objective of this study was to assess radiological environmental impact of the phosphate processing industry to identify the radiological effects on the general public. The resident farmer scenario was chosen as the exposure scenario due to the living characteristics of the public around the facility and the conservatism of the assessment. The RESRAD-OFFSITE code was used to evaluate the radiation dose to the public. The maximum radiation dose to the public was 6.13 × 10^-3 mSv/y. Main exposure pathways were aquatic food ingestion, radon inhalation, and meat ingestion. The uranium series accounted for about 99 % of the total radiation dose, while the thorium series and K-40 nuclides accounted for less than 1 %. These study results can be used for management of radiological impact to the public around domestic NORM industries.

• 방사선산업학회지
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• 제18권3호
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• pp.183-193
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• 2024

As part of the social response to the radon bed incident in 2018, the Nuclear Safety and Security Commission took measures to collect and dispose of all radon beds. The Waste Management Act provides landfill disposal as one of the disposal methods for natural radioactive product waste, which is one of the NORM wastes. When NORM wastes are landfilled, workers and the public at the landfill site are exposed to radiation through various pathways, such as leaching of radionuclides through soil and groundwater, and multiple exposure factors are involved simultaneously. In order to improve the reliability of radiological impact assessment, the values of main exposure factors should be selected more accurately. Therefore, before developing the main exposure factors for site characteristics, it is necessary to prioritize main exposure factors reflecting domestic characteristics of NORM waste landfills. Therefore, in this study, the main exposure factors for NORM waste landfill were derived using NDD analysis. To derive the main exposure factors, the analysis tool was first selected as RESRAD-ONSITE computer code, and the exposure scenarios were mainly selected as a resident farmer and suburban resident scenario, recreation scenario, and industrial worker scenario. Then, the priority 1 and 2 factors were selected for sensitivity analysis, and a Korean standard model was established to reflect Korean characteristics. Finally, the sensitivity analysis was conducted through NDD, and the main exposure factors were derived based on this. In the resident farmer scenario, the contaminated zone distribution coefficients of ²²⁶Ra, ²¹⁰Pb, ²³²Th, ²²⁸Ra, ²³⁴U, and ²³⁸U, as well as precipitation and evapotranspiration factors, were derived as the main exposure factors. In the suburban resident scenario, the contaminated zone distribution coefficients of ²²⁶Ra, ²¹⁰Pb, ²³²Th, ²²⁸Ra, ²³⁴U, and ²³⁸U, as well as precipitation and evapotranspiration coefficients, were derived as the main exposure factors. In the recreation scenario, the contaminated zone distribution coefficient of ²³²Th was derived as the main exposure factor. For the industrial worker scenario, the erosion rate was derived as the main exposure factor. The main exposure factors for each scenario were analyzed to be different depending on the scenario characteristics. The results of this study can be utilized as a basis for radiological environmental impact assessment of NORM waste landfill in Korea.

• 대한환경공학회지
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• 제38권4호
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• pp.155-161
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• 2016

본 연구는 쾌적한 주거환경과 지속가능한 도시를 구현하기 위한 일환으로 신규 공공주택단지에 건설된 생활폐기물 자동집하시설을 이용하는 거주자를 대상으로 그 사용 평가를 분석하는데 그 목적이 있다. 6개 도시 소재 분양 및 임대 아파트 단지 11곳의 거주자들을 대상으로 설문조사를 하였으며, 통계분석한 결과를 요약하면 다음과 같다. 거주자들 대부분은 현주택단지에 이사 오기 전까지 생활폐기물 자동집하시설을 들어보거나 사용해 경험이 없었으며, 대부분 이사 직후 관리사무소 직원을 통해 사용법을 습득하였다. 다만, 분양아파트 거주자들에 비해 임대아파트 거주자들의 이용법 교습시점이 3배 이상 늦어졌다. 생활폐기물 자동집하시설에 대한 만족도는 분양아파트 거주자보다 임대아파트 거주자들에게서 더 높았고, 세부적인 항목에서도 임대아파트 거주자들이 보다 더 긍정적으로 평가하였다. 생활폐기물 자동집하시설에 대한 부정적으로 평가된 항목은 거의 없었으나 사용자 중심의 편리성이 강화된 시설로 거듭나는 요구가 있었다. 분양 및 임대아파트 거주자들 대부분은 생활폐기물 자동집하시설이 쾌적한 주거환경 구축하므로 확대 보급되어야 한다고 하였다.

• 대한환경공학회지
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• 제37권12호
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• pp.674-681
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• 2015

음식물쓰레기의 감량과 자원화를 실용화하기 위한 일환으로 수행된 본 연구는 목질바이오칩을 활용하여 발효 소멸 기술을 적용한 음식물쓰레기 제로하우스 시스템(ZFWS)을 공동주택 단지 내에 구축하여 평가하였다. 단지 내 시험장치를 설치하여 운영 제반 전 과정을 모니터링한 현장조사와 그 장치를 이용한 거주자들을 대상으로 한 설문조사를 병행하였다. 현장 조사에서는 투입 음식물쓰레기와 혼합 반응조 혼합물의 성상, 발효 소멸된 최종 부산물의 성상을 분석하였다. 투입 음식물 쓰레기와 혼합 반응조 혼합물은 안정화된 수준의 유기물 함량과 함수율, 낮은 염도, 약칼리성의 수소이온농도, 높은 ATP 농도를 보여 발효 소멸 반응이 원활히 이루어졌음을 보여주었다. 최종 부산물은 비료공정규격의 기준(예, 유기물 함량, 유기물대질소비, 수분, 염분, 각종 중금속 등)에 적합하고, 친환경 퇴비로서 충분히 기능하는 것으로 나타났다. 한편, ZFWS 시범 운영에 참여한 가구들을 대상으로 한 설문조사에서 거주자들 대부분은 ZFWS의 도입에 적극적이었고, 그 운영에 긍정적으로 평가하였다. 따라서, 본 연구결과는 ZFWS이 기존 음식물쓰레기의 처리방식을 개선하고, 공동주택 단지 내 발생하는 음식물 쓰레기의 퇴비화를 실현하는 최적의 모델로서 가능성을 확인하였다.

• Journal of Chest Surgery
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• 제49권sup1호
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• pp.14-19
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• 2016

Background: This study uses the relevance index to understand the condition of regional medical service use for cardiovascular surgery and to identify the medical service use imbalance between regions. Methods: This study calculated the relevance index of 16 metropolitan cities and provinces using resident registration address data from the Ministry of Government Administration and Home Affairs and the 2010-2014 health insurance, medical care assistance, and medical benefits claims data from the Health Insurance Review and Assessment Service. We identified developments over the 5-year time period and analyzed the level of regional imbalance regarding cardiovascular surgery through the relative comparison of relevance indexes between cardiovascular and other types of surgery. Results: The relevance index was high in large cities such as Seoul, Daegu, and Gwangju, but low in regions that were geographically far from the capital area, such as the Gangwon and Jeju areas. Relevance indexes also fell as the years passed. Cardiovascular surgery has a relatively low relevance index compared to key types of surgery of other fields, such as neurosurgery and colorectal surgery. Conclusion: This study identified medical service use imbalance between regions for cardiovascular surgery. Results of this study demonstrate the need for political intervention to enhance the accessibility of necessary special treatment, such as cardiovascular surgery.